Pennell was hospitalized on 6 February 1918, ending his duty tour.

And when he came back from the duty tour, they would see.

When her duty tour was over, she wanted to take both of us back to Kai.

Their duty tours were over for the day; there was a long night to follow.

Our duty tour finished a few weeks back.

She then resumed the alternation of duty tours with the 2nd and 6th Fleets.

It was something to celebrate: the end of a duty tour on this accursed planet.

After a duty tour, she had just settled down in her pool below decks when the call had come.

Officers enjoy regular duty tours and, with more responsibility, feel and act like professionals.